From RG-UF/M....To RGU-2....And Beyond

DanDunfee · 6th September 2007, 20:58

Quote: (Originally Posted by jorgey)

I've just posted a couple of photos of mine,

=============
I'd like to see the pics. Where are they posted ??

jorgey · 6th September 2007, 22:26

Quote: (Originally Posted by DanDunfee)

=============
I'd like to see the pics. Where are they posted ??

Sorry Dan, I'm a little newbie here...

I've posted direct at the homebuilder gallery, but now I moved them to the From RG-UF/M....To RGU-2 gallery
I hope you find them now.

jorgeY

DanDunfee · 7th September 2007, 01:07

JeorgY

Nice clean, simple setup. Good looking workmanship. Have some Green ;-)
I'm pretty insistant on knowing my tank pressure, so I ran a close-coupled pressure gauge off what was the filling boss. .
I can't tell for sure whether you made your own counterlung or used a ready-made bag. If you made it, what is the material and construction method ?? What CL free volume with charged scrubber inside ??
I also liked the 'tupperware scrubber', simple, innovative. What weight scrubber charge ?? I had worked up a concept for a 2-hose pancake, radial scrubber a'la C-96, using a plastic canteen. Don't know whether I'll build it..not in near-term for sure..

BR
Dan

DanDunfee · 7th September 2007, 02:40

Quote: (Originally Posted by Tom Rose)

Those people who have not used a light weight chest mounted unit just have no clue how easy they are to dive
Tom....

===========
Yeah Tom, I too have been hooked on chest-pack rigs for a looong time, going back into the 50s...to LS-901 and CDBA. They're simple (like me) and just plain fun to dive.. Your own C-57 is looking good now.

I'm starting to anxiously look forward to getting the more-capable D105 mixed-gas mCCR rig functional, but still substantial intermediate work to do on the mixed-gas sub-systems . I've even started to experiment some with plastic orifices. Damn tinkerers just won't quit yanno ;-).

oxydiver · 7th September 2007, 08:13

Quote: (Originally Posted by Tom Rose)

Those people who have not used a light weight chest mounted unit just have no clue how easy they are to dive.

Tom....

Hallo all,

this is also my opinion. Here is a small compressed vid with my pendulum as MCCR dive in Spain.
Picasa-Webalben - mike - Costa Brava.
At present i build a hard cover, so that the parts are better fastened and to make the unit more streamlined. The unit has than two options, pendulum hose and double hose.

@dandunfee

very good idea and work, i think i make this also, but the time....

Micha

jorgey · 7th September 2007, 10:33

Quote: (Originally Posted by DanDunfee)

JeorgY

Nice clean, simple setup. Good looking workmanship. Have some Green ;-)
I'm pretty insistant on knowing my tank pressure, so I ran a close-coupled pressure gauge off what was the filling boss. .
I can't tell for sure whether you made your own counterlung or used a ready-made bag. If you made it, what is the material and construction method ?? What CL free volume with charged scrubber inside ??
I also liked the 'tupperware scrubber', simple, innovative. What weight scrubber charge ?? I had worked up a concept for a 2-hose pancake, radial scrubber a'la C-96, using a plastic canteen. Don't know whether I'll build it..not in near-term for sure..

BR
Dan

Hi Dan!
thank you :-)
About the CL: it's a selfmade, made of PVC membrane for garten ponds, 1mm thick, folded and glued (in oxydiver style

, danke Michael for the infos)
I must take a look at my notes, but the capacity of the scrubber was around the same as the one in the P-96.
I would like to know the gas capacity of the CL, too

... How could I measure it? Any idea? I could calculate it, I think. It feels enough.
The tupperware solution is very simple, a bit tricky to load but with the advantage, that you check the scrubber complete every time you load it, because you full open it. And it's so simple (and cheap), that you can take a spare-at-home-loaded scrubber allways with you.
I have done an adapter for a pressure gauge, but I didn't tested it.-
And that's right, it's unique dive feeling

ciao
jorge

DanDunfee · 8th September 2007, 13:15

Quote: (Originally Posted by Beanie;)

Will try to sort this out today I have you PDF jsut need to format it for the site.

==============================
Beanie

Many thanks for getting the Article posted in the Rebreather World Library.

Dan

Yankee Rebel · 10th September 2007, 04:36

Quote: (Originally Posted by jorgey)

I would like to know the gas capacity of the CL, too

... How could I measure it? Any idea? I could calculate it, I think. It feels enough.

i think your RG-UF/M reg is supposed to flow at .8-1.1Lpm. so just timing how long it takes to fill your CL shouldnt be hard. just measure the flow rate.. buy a flow meter off ebay or...Tom Rose has a simple fow meter here:
ACCURATE FLOWMETER
and then time to see how long it takes to fill the CL.

flow rate is .8 lpm for ease of example.. it takes 5 minutes 45 seconds to fill the CL from dead empty to firm/full... .8X5.75=4.6.

DanDunfee · 10th September 2007, 14:25

Quote: (Originally Posted by Yankee Rebel)

i think your RG-UF/M reg is supposed to flow at .8-1.1Lpm. so just timing how long it takes to fill your CL shouldnt be hard.

flow rate is .8 lpm for ease of example.. it takes 5 minutes 45 seconds to fill the CL from dead empty to firm/full... .8X5.75=4.6.

================
Nearly all RGUs I've handled, or heard of, seem to have a flow rate adjusted right at .9 l/m If you have a flowmeter, check this. Then use the method above. Assuming you have a DSV, then check it with DSV closed, and a charged scrubber in place. This will give you a total loop (excl man) free volume, a very useful number for several calculations.

Establishing such a method for 'time to fill the bag' also gives you a convenient quick-check method to verify correct mass flow pre-dive.

Dan

jorgey · 11th September 2007, 08:22

thank you dan & yankee for the tipps.-
I have "tüved" (official test here) my bottles now, and I as soon as I have the valves back on them I'm going to do tests.-
I do have a flowmeter (from my azi) and I think, I can connect it without problems.-
Which calculations do you mean, Dan?
jorge

6th September 2007, 20:58	#11 (permalink)
DanDunfee Custom Title Allowed! Current Rebreather/s: Other CCR Other SCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Other SCR Home Build Join Date: Sep 2005 Location: Virginia, USA Posts: 204	Re: From RG-UF/M....To RGU-2....And Beyond Quote: (Originally Posted by jorgey) I've just posted a couple of photos of mine, ============= I'd like to see the pics. Where are they posted ?? __________________ There are 'Bold' divers and old divers, but NO old, ' Bold ' divers
(Offline)

6th September 2007, 22:26	#12 (permalink)
jorgey New Member Current Rebreather/s: Azimuth Home Build Other Rebreather/s: Azimuth Home Build Join Date: May 2007 Location: Austria / Argentina Posts: 57	Re: From RG-UF/M....To RGU-2....And Beyond Quote: (Originally Posted by DanDunfee) ============= I'd like to see the pics. Where are they posted ?? Sorry Dan, I'm a little newbie here... I've posted direct at the homebuilder gallery, but now I moved them to the From RG-UF/M....To RGU-2 gallery I hope you find them now. jorgeY
(Offline)

7th September 2007, 01:07	#13 (permalink)
DanDunfee Custom Title Allowed! Current Rebreather/s: Other CCR Other SCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Other SCR Home Build Join Date: Sep 2005 Location: Virginia, USA Posts: 204	Re: From RG-UF/M....To RGU-2....And Beyond JeorgY Nice clean, simple setup. Good looking workmanship. Have some Green ;-) I'm pretty insistant on knowing my tank pressure, so I ran a close-coupled pressure gauge off what was the filling boss. . I can't tell for sure whether you made your own counterlung or used a ready-made bag. If you made it, what is the material and construction method ?? What CL free volume with charged scrubber inside ?? I also liked the 'tupperware scrubber', simple, innovative. What weight scrubber charge ?? I had worked up a concept for a 2-hose pancake, radial scrubber a'la C-96, using a plastic canteen. Don't know whether I'll build it..not in near-term for sure.. BR Dan __________________ There are 'Bold' divers and old divers, but NO old, ' Bold ' divers Last edited by DanDunfee : 7th September 2007 at 02:14.
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7th September 2007, 02:40	#14 (permalink)
DanDunfee Custom Title Allowed! Current Rebreather/s: Other CCR Other SCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Other SCR Home Build Join Date: Sep 2005 Location: Virginia, USA Posts: 204	Re: From RG-UF/M....To RGU-2....And Beyond Quote: (Originally Posted by Tom Rose) Those people who have not used a light weight chest mounted unit just have no clue how easy they are to dive Tom.... =========== Yeah Tom, I too have been hooked on chest-pack rigs for a looong time, going back into the 50s...to LS-901 and CDBA. They're simple (like me) and just plain fun to dive.. Your own C-57 is looking good now. I'm starting to anxiously look forward to getting the more-capable D105 mixed-gas mCCR rig functional, but still substantial intermediate work to do on the mixed-gas sub-systems . I've even started to experiment some with plastic orifices. Damn tinkerers just won't quit yanno ;-). __________________ There are 'Bold' divers and old divers, but NO old, ' Bold ' divers Last edited by DanDunfee : 7th September 2007 at 11:46.
(Offline)

7th September 2007, 08:13	#15 (permalink)
oxydiver New Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Jun 2006 Location: Germany Posts: 10	Re: From RG-UF/M....To RGU-2....And Beyond Quote: (Originally Posted by Tom Rose) Those people who have not used a light weight chest mounted unit just have no clue how easy they are to dive. Tom.... Hallo all, this is also my opinion. Here is a small compressed vid with my pendulum as MCCR dive in Spain. Picasa-Webalben - mike - Costa Brava. At present i build a hard cover, so that the parts are better fastened and to make the unit more streamlined. The unit has than two options, pendulum hose and double hose. @dandunfee very good idea and work, i think i make this also, but the time.... Micha
(Offline)

7th September 2007, 10:33	#16 (permalink)
jorgey New Member Current Rebreather/s: Azimuth Home Build Other Rebreather/s: Azimuth Home Build Join Date: May 2007 Location: Austria / Argentina Posts: 57	Re: From RG-UF/M....To RGU-2....And Beyond Quote: (Originally Posted by DanDunfee) JeorgY Nice clean, simple setup. Good looking workmanship. Have some Green ;-) I'm pretty insistant on knowing my tank pressure, so I ran a close-coupled pressure gauge off what was the filling boss. . I can't tell for sure whether you made your own counterlung or used a ready-made bag. If you made it, what is the material and construction method ?? What CL free volume with charged scrubber inside ?? I also liked the 'tupperware scrubber', simple, innovative. What weight scrubber charge ?? I had worked up a concept for a 2-hose pancake, radial scrubber a'la C-96, using a plastic canteen. Don't know whether I'll build it..not in near-term for sure.. BR Dan Hi Dan! thank you :-) About the CL: it's a selfmade, made of PVC membrane for garten ponds, 1mm thick, folded and glued (in oxydiver style , danke Michael for the infos) I must take a look at my notes, but the capacity of the scrubber was around the same as the one in the P-96. I would like to know the gas capacity of the CL, too ... How could I measure it? Any idea? I could calculate it, I think. It feels enough. The tupperware solution is very simple, a bit tricky to load but with the advantage, that you check the scrubber complete every time you load it, because you full open it. And it's so simple (and cheap), that you can take a spare-at-home-loaded scrubber allways with you. I have done an adapter for a pressure gauge, but I didn't tested it.- And that's right, it's unique dive feeling ciao jorge
(Offline)

8th September 2007, 13:15	#17 (permalink)
DanDunfee Custom Title Allowed! Current Rebreather/s: Other CCR Other SCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Other SCR Home Build Join Date: Sep 2005 Location: Virginia, USA Posts: 204	Re: From RG-UF/M....To RGU-2....And Beyond Quote: (Originally Posted by Beanie;) Will try to sort this out today I have you PDF jsut need to format it for the site. ============================== Beanie Many thanks for getting the Article posted in the Rebreather World Library. Dan __________________ There are 'Bold' divers and old divers, but NO old, ' Bold ' divers
(Offline)

10th September 2007, 04:36	#18 (permalink)
Yankee Rebel Custom Title Allowed! Current Rebreather/s: Other CCR Home Build Other Rebreather/s: Other CCR Home Build Join Date: Jan 2006 Location: California Posts: 147	Re: From RG-UF/M....To RGU-2....And Beyond Quote: (Originally Posted by jorgey) I would like to know the gas capacity of the CL, too ... How could I measure it? Any idea? I could calculate it, I think. It feels enough. i think your RG-UF/M reg is supposed to flow at .8-1.1Lpm. so just timing how long it takes to fill your CL shouldnt be hard. just measure the flow rate.. buy a flow meter off ebay or...Tom Rose has a simple fow meter here: ACCURATE FLOWMETER and then time to see how long it takes to fill the CL. flow rate is .8 lpm for ease of example.. it takes 5 minutes 45 seconds to fill the CL from dead empty to firm/full... .8X5.75=4.6.
(Offline)

10th September 2007, 14:25	#19 (permalink)
DanDunfee Custom Title Allowed! Current Rebreather/s: Other CCR Other SCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Other SCR Home Build Join Date: Sep 2005 Location: Virginia, USA Posts: 204	Re: From RG-UF/M....To RGU-2....And Beyond Quote: (Originally Posted by Yankee Rebel) i think your RG-UF/M reg is supposed to flow at .8-1.1Lpm. so just timing how long it takes to fill your CL shouldnt be hard. flow rate is .8 lpm for ease of example.. it takes 5 minutes 45 seconds to fill the CL from dead empty to firm/full... .8X5.75=4.6. ================ Nearly all RGUs I've handled, or heard of, seem to have a flow rate adjusted right at .9 l/m If you have a flowmeter, check this. Then use the method above. Assuming you have a DSV, then check it with DSV closed, and a charged scrubber in place. This will give you a total loop (excl man) free volume, a very useful number for several calculations. Establishing such a method for 'time to fill the bag' also gives you a convenient quick-check method to verify correct mass flow pre-dive. Dan __________________ There are 'Bold' divers and old divers, but NO old, ' Bold ' divers Last edited by DanDunfee : 10th September 2007 at 14:47.
(Offline)

11th September 2007, 08:22	#20 (permalink)
jorgey New Member Current Rebreather/s: Azimuth Home Build Other Rebreather/s: Azimuth Home Build Join Date: May 2007 Location: Austria / Argentina Posts: 57	Re: From RG-UF/M....To RGU-2....And Beyond thank you dan & yankee for the tipps.- I have "tüved" (official test here) my bottles now, and I as soon as I have the valves back on them I'm going to do tests.- I do have a flowmeter (from my azi) and I think, I can connect it without problems.- Which calculations do you mean, Dan? jorge
(Offline)

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